While stock DSLR's are generally fine for capturing galaxies, reflection nebulae and star clusters, they are woefully lacking in sensitivity to hydrogen-alpha energy. This is the light from glowing hydrogen that gives emission nebulae their characteristic red colour. 

However, that sensitivity is already built into your camera...you only need to release it.

All digital cameras have a filter in front of the imaging chip which greatly attenuates infrared energy which skews the natural visual colour balance and does not focus at the same point as visible light...and DSLR's are no different.

Unfortunately, the camera manufacturers didn't have astronomy in mind when they designed these filters since they greatly attenuate hydrogen-alpha light which falls in the spectrum between deep red visible light and infrared.

In the Canon DSLR's, the response to hydrogen-alpha is down to about 20% of the sensitivity to other colours. 

This causes astronomical photographs of emission nebulae to appear washed out. Unfortunately, it is virtually impossible to make up the difference by simply exposing longer or stacking more images since the signal-to-noise ratio at the critical hydrogen-alpha wavelength is so low.



Our  filter removal will leave your camera with improved spectral absorption capable of vastly increased H-alpha and red response (up to 98%), which is particularly useful for capturing images of faint emission nebula. Daytime photography will work with a custom white balance set on the camera. The autofocus will not work, only manual mode.

Likewise a filter change, requires a new Baader ACF/BCF high-quality transmission filter to be put in place of the standard filter, and additionally will still allow daytime photography and auto focusing.